package main

import "fmt"

//常量的声明
const people_ame = "Bruce.yang"
const phone_number = 123456789
const pi = 3.1415926
const status = false
var _status = false

func main()  {
	fmt.Println("Hello World")
	fmt.Println(people_ame)
	fmt.Println(phone_number)
	fmt.Println(pi)
	fmt.Println(status)
	//phone_number = 987654321 非法操作，常量不可修改
	//status = true // 非法操作，常量不可修改
	_status = true
	fmt.Println(_status)

	const (
		K2Pro = iota
		K2Plus
		K2Max
	)

	fmt.Println(K2Pro, K2Plus, K2Max)
}